4种沉水植物对富营养化水体氮磷的去除能力

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Abstract

Submerged plants are commonly used in water purification and ecological restoration.The removal rates of four common submerged plants on nitrogen and phosphorus in the water of Houtan Park were analyzed through 30 days laboratory simulation and determination under six different planting densities.The results show that four submerged plants have significantly high removal rates of excessive nitrogen and phosphorus in eutrophic water.Removal efficiency of total nitrogen(TN) by Hydrilla verticillata reaches the highest 65% under planting density of 3 g·L^-1,and the highest removal efficiency of total phosphorus(TP)by Potamogeton malaianus reaches 88%.Within the planting density range of 0.5 g·L^-1-3 g·L^-1,the removal rates of total nitrogen and phosphorus in four submerged plants increased with increasing planting density.

Key words： submerged plant nitrogen and phosphorus density removal efficiency

Received: 25 April 2011

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	Articles by authors
	HUANG Zi-xian
	ZHANG Yin-jiang
	MA Hai-feng
	WANG Cong
	LUO Si-ting
	HUO Heng-cui

Cite this article:

HUANG Zi-xian,ZHANG Yin-jiang,MA Hai-feng, et al. A comparative study on removal efficiency of four submerged plants on phosphorus and nitrogen in eutrophic water under different planting density[J]. , 2011, 30(2): 102-106.

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http://www.ecolsci.com/EN/ OR http://www.ecolsci.com/EN/Y2011/V30/I2/102

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